If we arrive at Vela Luka will my husband be able to board the bus in his wheelchair? (He is unable to walk at all). If the bus is not possible are there taxis available and how much would a taxi from Vela Luka to Korcula town cost?

Sorry, buses are not adjusted for wheelchair user, unfortunately. :-Taxis are available in Vela Luka – they cost about 320 kuna to Korcula Town.